The semi-finals will be French and English domestic clashes meaning a team from each nation will reach the final.
Bayonne and Auch will clash in one of the semi-finals while Leeds Tykes will take on Zurich Premiership rivals Worcester in the other semi-final.
The ERC Board today (Sunday) announced that Worcester would progress to the last four. Worcester were leading 28-12 in the second leg of their quarter-final against Leonessa on Friday night when the match had to be abandoned after 49 minutes because of fog. Worcester won the First Leg 32-6.
A draw will determine the order of home advantage for each pairing. The first leg will be played on 1 / 2 / 3 April and the Second Leg on 22 / 23 /
EUROPEAN SHIELD SEMI-FINAL QUALIFIERS
BAYONNE (Q/F: 4 match points v UCM Madrid)
AUCH (Q/F: +29 points difference v GRAN Rugby)
LEEDS TYKES (Q/F: 4 match points v Petrarca Rugby)
WORCESTER (Q/F: 4 match points v Leonessa)